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Quiz 1
Pathology Dr. Lewis
32
Pathology
Professional
02/15/2012

Additional Pathology Flashcards

 


 

Cards

Term
Describe skin as an organ and its functions
Definition
*protection of underlying tissue from external injury and prevent infections.
*acts as an insulator to assist in thermal regulation
*Epithelial tissue surrounds body organs
*Skin provides sensory info., temp regulation via sweat glands, aids in fluid balance and metabolizes Vit. D
Term
Epidermis
Definition
Superficial layer of integumentory system. Cells are avascular. Protects against infection. Contains melanocytes.
Term
Dermis (two layers)
Definition
Middle layer of integumentary system.
*Papillary Dermis: loose connective tissue that locks the epidermis to the dermis. Contains capillaries and nerve endings. Provides epidermis with nourishment.
*Reticular: thick collagen and elastic fibers. Contains roots of hair, sebaceous glands, sweat glands and receptor nerve endings.
Term
Hypodermis/ subcutaneous tissue
Definition
a layer of adipose tissue under the dermis. Large blood vessels.
Term
Role of epithelial in other organs and tissues?
Definition
Cover the internal surfaces of hollow organs, like the digestive tube, airway, renal tubules, ureters, bladder, the urethra and the blood vessel, glands and serous membranes. Perform covering, impermeability and protection. Made possible by the absence of space between cells.
Term
What is the function of desmosomes and interdigitations?
Definition
Specialized structures for cell adhesion. Keep the epithelial cells compactly positioned side by side. Necessary bc the epidermal tissues are exposed to an exterior surround and so they need resistance to permeability. As we age these become looser.
Term
Thermal Burns
Definition
caused by contact with flames, hot liquids, steam or hot objects. Smoke produced can lead to pulmonary issues.
Term
Chemical
Definition
acids or caustic agents. tissue contact, ingestion, inhalation or injection of strong acids, alkalis, or organic compounds.
Term
Electrical
Definition
electricity exposure or lightening, entry and exit point.
Term
Radiation
Definition
Sunburn, industrial or therapeutic nuclear radiation exposure.
Term
What purpose do the Rule of 9s and the Lund-Browder formula serve?
Definition
Severity of burns. Rule of 9s is the body divided into anatomical sections of 9% or multiples of 9% of the TBSA. Lund-Browder modifies the body segments by age to provide a more accurate estimate of burn size.
Term
1st degree burns
Definition
Tissue: Epidermis
Appearance: Erythema, dry
Sensation: painful
Course: 3-7 days
Term
2nd degree burns
Definition
Tissues: epidermis and dermis
Appearance: blisters, wet
Sensation: painful
Course: 14-21 days
Term
3rd degree burns
Definition
Tissues: epidermis, dermis and subcutaneous
Appearance:variable tissue exposed
Sensation: no pain
Course:eschar, 2-3wk grafts
Term
Shock and severe burns
Definition
Increased capillary permeability, increased blood pressure, and low blood volume can lead to shock if IV fluids are not administered. Fluid levels and shock can also lead to renal failure.
Term
Pathologies: Cardiovascular
Definition
Release of vasoactive substances (catecholamines, histamine, serotonin, leukotrienes, prostaglandins) cause increased capillary permeability, increased blood pressure, tachycardia with low blood volume, hypovolemia cause shock and death
Term
Pathologies: Renal and GI
Definition
Renal: oliguria (low urine output), renal failure.
GI: paralytic ileus (intestinal obstruction), stress induced gastric ulcers
Term
Pathologies: Neural
Definition
Electrolyte imbalance: CNS, confusion, seizures
Term
Pathologies: Pulmonary
Definition
ARDS (resp. distress syn.), pneumonia, tachypnea, dyspnea.
Term
Pathologies: Peripheral vascular
Definition
edema, pain, numbness
Term
Pathologies: Electrical burns
Definition
heat is generated as electricity travels through the body, resulting in internal tissue damage. Alternating current is more damaging than direct bc it is associated with cardiopulmonary arrest, ventricular fibrillation, and tetanic muscle contractions.
Term
Emergent phase
Definition
begins at the time of injury and concludes with the restoration of capillary permeability, usually 48 to 72 hours following injury.
Term
Acute phase
Definition
begins when the person is hemodynamically stable, capillary permeability is restored and duiresis has begun. Continues until wound closure is achieved.
Term
Rehabilitation phase
Definition
often overlaps with acute and lasts well beyond the period of hospitalization. This phase focuses on gaining independence through achievement of maximal functional recovery.
Term
Hypertrophic scarring
Definition
scarring can cause permanent imparment of movement and function and cause disfigurement. Children and African Americans have more collagen and thus hypertrophic scarring is worse. Older caucasians have less collagen with less keloid scarring.
Term
Medical management for minor burns
Definition
Debridement of loose nonviable tissue, tropical antimoicrobial creams or ointment, sterile dressing and blister management
Term
Medical management for major bruns
Definition
life saving procedures, Emergent: ABC--airway, breathing, circulation, balance of electrolytes and restore fluids.
Term
Bioengineered temporary grafts
Definition
Minimize fluid and protein loss and reduce pain. These grafts are allografts (donor tissue), xenografts (pig skin) and biosynthetic (collagen and synthetics)
Term
Autograft
Definition
person's own skin is used to treat full thickness burns. Skin graft may be fenestrated to cover up to 3-x the surface area.
Term
PT management during Acute phase
Definition
positioning, ambulation, maintaining active range of motion except during immobilization. Monitor vital signs (oxygen, blood pressure, oxygen saturation), be alert to complication-ileus, respiratory distress, infection and impaired circulation. Mindful of laboratory values especially for full thickness burns w/ electrolyte imbalance & chance in mental status.
Term
Acute: hydrotherapy and pulsed lavage
Definition
Hydrotherapy limited to 30 min. with water temp. 98-102 degrees less often used bc of bacteria growth at that temp.
Pulsed lavage with suction for irrigation and debridement to treat the wound w/o disturbing the graft. TREATMENT THAT CAN CAUSE PAIN SHOULD COINCIDE WITH PAIN MEDICATION.
Term
PT management during Rehab phases
Definition
Prolonged stretching, use of elastic garments to minimize scarring, splinting & orothoses to maintain range. Gait training, ambulation, reconditioning, ADLs.
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